#685 Add php implementation for PBKDF2

- Create php sample for PBKDF2
- Rename pbkdf2 java classes (remove Crypt prefix)
- Remove options from hash setting comment that should not be used

src/main/java/fr/xephi/authme/security/HashAlgorithm.java

@@ -1,10 +1,11 @@
 package fr.xephi.authme.security;
 
 import fr.xephi.authme.security.crypts.EncryptionMethod;
+import fr.xephi.authme.security.crypts.Pbkdf2;
+import fr.xephi.authme.security.crypts.Pbkdf2Django;
 
 /**
- * The list of hash algorithms supported by AuthMe. The linked {@link EncryptionMethod} implementation
- * must be able to be instantiated with the default constructor.
+ * Hash algorithms supported by AuthMe.
  */
 public enum HashAlgorithm {
 
@@ -18,8 +19,8 @@ public enum HashAlgorithm {
     MD5(fr.xephi.authme.security.crypts.MD5.class),
     MD5VB(fr.xephi.authme.security.crypts.MD5VB.class),
     MYBB(fr.xephi.authme.security.crypts.MYBB.class),
-    PBKDF2(fr.xephi.authme.security.crypts.CryptPBKDF2.class),
-    PBKDF2DJANGO(fr.xephi.authme.security.crypts.CryptPBKDF2Django.class),
+    PBKDF2(Pbkdf2.class),
+    PBKDF2DJANGO(Pbkdf2Django.class),
     PHPBB(fr.xephi.authme.security.crypts.PHPBB.class),
     PHPFUSION(fr.xephi.authme.security.crypts.PHPFUSION.class),
     @Deprecated

src/main/java/fr/xephi/authme/security/crypts/Pbkdf2.java

@@ -7,7 +7,7 @@ import fr.xephi.authme.security.crypts.description.Recommendation;
 import fr.xephi.authme.security.crypts.description.Usage;
 
 @Recommendation(Usage.RECOMMENDED)
-public class CryptPBKDF2 extends HexSaltedMethod {
+public class Pbkdf2 extends HexSaltedMethod {
 
     private static final int NUMBER_OF_ITERATIONS = 10_000;
 

src/main/java/fr/xephi/authme/security/crypts/Pbkdf2Django.java

@@ -9,7 +9,7 @@ import fr.xephi.authme.util.StringUtils;
 import javax.xml.bind.DatatypeConverter;
 
 @AsciiRestricted
-public class CryptPBKDF2Django extends HexSaltedMethod {
+public class Pbkdf2Django extends HexSaltedMethod {
 
     private static final int DEFAULT_ITERATIONS = 24000;
 
@@ -32,7 +32,7 @@ public class CryptPBKDF2Django extends HexSaltedMethod {
         try {
             iterations = Integer.parseInt(line[1]);
         } catch (NumberFormatException e) {
-            ConsoleLogger.warning("Could not read number of rounds for CryptPBKDF2Django:"
+            ConsoleLogger.warning("Could not read number of rounds for Pbkdf2Django:"
                 + StringUtils.formatException(e));
             return false;
         }